A quick check to make sure the mail server wasn’t on any SPAM list and some analysis lead straight to the cforms plugin: Emails send via this plugin has a positive match at SPAM control – I had proof of this when I monitored a blog and sent copy of the message to my Gmail.

Resources for Search Engine Optimization, Web Marketing, or just everyday work from Sante – %date%: WordPress Plugins for Twitter › Tracked Tweets Defines the format of tweet, with control over where variables are inserted, tracks clicks to your blog using Google Analytics.